11312310222 has 24 divisors (see below), whose sum is σ = 24512615400. Its totient is φ = 3770368560.

The previous prime is 11312310173. The next prime is 11312310241. The reversal of 11312310222 is 22201321311.

11312310222 is a `hidden beast` number, since 1 + 131 + 2 + 310 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11312310195 and 11312310204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175572 + ... + 231192.

It is an arithmetic number, because the mean of its divisors is an integer number (1021358975).

Almost surely, 2^11312310222 is an apocalyptic number.

11312310222 is an abundant number, since it is smaller than the sum of its proper divisors (13200305178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11312310222 is a wasteful number, since it uses less digits than its factorization.

11312310222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66928 (or 66925 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11312310222 its reverse (22201321311), we get a palindrome (33513631533).

The spelling of 11312310222 in words is "eleven billion, three hundred twelve million, three hundred ten thousand, two hundred twenty-two".